Western Harebell
Campanula petiolata
Last reviewed: June 2026
Light
part shade
Water
medium
Size
12"–24" H × 8"–16" W
Bloom
Jun, Jul, Aug
Native to
AZ, CA, CO, ID and 11 more states
Pollinators
bees, butterflies
Campanula petiolata is a charming native bellflower that produces delicate blue or purple bell-shaped flowers from June through August. This compact perennial forms neat clumps with attractive heart-shaped leaves and thrives in partially shaded areas with average moisture.
In an HOA neighborhood
Western Harebell is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
The tubular flowers are particularly attractive to native bees and provide nectar for various butterfly species throughout the summer blooming period.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Western Harebell fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.